[freakaftr8]

I also found out that the KV-1510 was a long production run.. From 1972-1975. I have seen early ones that dont say econoquick. mine does. Also later ones had the econoquick embossed into the solid state logo above, (see pic) Mine was an add on decal above the VHF tuner, where early units didn't have anything there. Maybe the first implementation of econoquick. 1974-75.